TY  - BOOK
AU  - Ballou,Glen
TI  - Electroacoustic devices: microphones and loudspeakers 
SN  - 9780240812670
AV  - TK5981 E432
PY  - 2009///
CY  - Amsterdam
PB  - Elsevier
KW  - Electroacoustic transducers
N1  - Includes bibliographical references and index
ER  -